Greasing brush



Feb. 28, 1933. w F. DEHUFF 1,899,316

GREAS ING BRUSH Filed Dec.- 151, 1930 L- f rech graqse.

Pump gwwmtoo aucun,

Patented `Feb. 28,19334 WALTER FQ DEHUFF, oF GLEN lnocif,iinivivsriivnivin GREASINGBRUSH Application lilcd December 31, `17930.,Se'ria1.0.f5k(-)5,870.l

This invention relates to brushes;v and more particularly, to a brushadapted to be used in connection with a pan greasing ma'- ,l chinecommonly used in connection with J Jf greasing pans in the bakingindustry. f f

rlhe prime object is to prevent grease that is normally fed through thehollow stem or sleeve onto the brush from leaking onto the n Nmachineduring the feeding process.l VAs usually used, the grease is melted andfed into a grease pump freni which it `is'forced through a hollow sleeveonto a brush head, A foot puinp is usually utilized, as a continu-y Q Afous feed is not necessary. Under these conditions due to the fact thatthe brushliead is usually made of wood 'andra close fit canrnotrbeobtained between the metal sleeve and the wooden brush head,the greasehas -a tendency to iow back along` the outside of the sleeve onto themachinery, creating` a very unsightly and undesirable condition, at thesame time providing iiivadet'iuatey lubrication for the brush head. 4 nV., ii my inventiointliis condition is impos-V sible due to my providingseals in the brush. to overcome these objections. s

Another object isto provide astronger and more durable constructionbetween the brush head 'portion` and the grease feeding mecha'- nisin. l

Gther objects will be disclosed in the speciiication and claims forminga part of this application. Y A Y In the drawing: f e g Y, 1

Figure 1 is a sine elevation of-tne greasingapparatus in connection withay .pain a portion of the pan. being broken away;

Figur-e 2 is a side elevation kof the greasing apparatus, with avertical section taken l:

through the brush head; and y Figure 3 is a bottom plan ofthe brushportion. y Y

Referring to the drawing in whichA like parts are designated by similarnumerals:

' Numeral l designates a dough pank ofthe usual construction whichiiiust be greased before receiving the dough. Numeral 5 desig` nates awooden brush head havinga bore 6 extending therethrough, the upper end,7 of

L the bore 6 being of smaller diameter than the lower end 8; VBristlesllare secured Iinthe Outer periphery 1()y of the hea-d'5 byk means ofstaples 11 or other suitable means. A metal vtube 12 "having its upperend 13 conforming` to the upper end 7 of the bore 6 Ais forced into 55Vthe bore 6., A shoulder 14 is formed yon the tube 12'andadaptedfto fitVclosely against a similar shoulder l-,forined inthe bore 6 due to thelowerk portionofthe'bore being cut "so lThe upper 'endfof the tube 12is. swedged outwardly to hold thefsameirinlyrin posi-k tion. `A.,groove16 is formed in the bottom yface 17 of the bruslilhead k5 andextends'into the bore. i Ay hollow spindle 18, having'a 65' collar19fsecuredthereto andkeys 20 (formed -f [on ,oney face 'adapted toengage the groove' 16, causes 'Y the brush head 5to rotate ,with thespindle 18X The collar` 19is spaced a suii'- cient distancefroin theendof the spindle 18 7 i so'tli'at Va close lit can always be maintainedbetween f the end'offthelfspindle 18 yand the y shoulden 14 and yetenablek the keys y20 to engage'fthe groovef16. Y The spindle- 18 kis i.supportedin bearingsg21and 22 in any suit- 75 e able manner,` and has agear 23V which may be attachedto'any well known drive means,` A-ballbearing 24-is positioned on the spindle 18'directlyabove the bearing21.

Underf this 4construction a grease 'seal is so formed 25 by theswedgingofthe sleeve 12, whic'liiat'the same time draws the shoul dery14' tightlyjagainst the shoulder 15 forni,-

' ingja secondgrease seal26glf'l`he lower pors -tionof'thevtiibe 12forms a vclose sliding it -85 s withtlie spindle 18 and the ,end of thespindle`18` lits tightly against the underside of the shoulder 14.15Since lboth the tube 12 and spindle 18 are of metal, the ysaine may be`machined toa very-close lit which is not true no where `metal iscontacting kwith wood, which is they case under the old construction; s

Underv my construction, a film of grease ywillaccumulate fromlthe'shoulder14 to theV lower end of the'tubefk12 forming a seal,` the95 grease formingthe film which wouldy not be true wherefthe metal wascontacting with the wood since the wood would vhave a tendencytoabsorbthegreasa y Y v'As' actually used, thel grease will be firstv 100'melted and forced under pressure by means of a hand pump through thespindle 18 through the tube 12 until it reaches the brush bristles 9. Itis evident that it is literally impossible for this grease to work backaround the tube 12 and spindle 18 due to the seals described. A,muehsuperior construe# tion is obtained by'having the groove 16 in the lowerface of the brush head instead of having this feature on the interior ofthe Y bore 6, as a more positive locking is obtained and the same maymore easily be formed in the head 5.

It is obvious that the subject matter of my F invention may be utilizedin ways other than illustrated in my drawings, and I do not limit myselftothis structure, but include means of accomplishing the saine resultwhich may fall within the scope of the claims appended hereto.

What I claim is:

1. Pressure grease brush for greasing pans and thelilre comprising abrush head and a conduit for supplying the grease thereto,

said conduit being divided in said head, the

upper part being a tube fixed to saidV head, s

and the lower part being a spindle for rota-t-` ing said brush head,said tube telescoping with sliding sealing fit into said spindle. 3e

and thev like comprising a brush head and a- Q.' Pressure grease brush,for greasing pans conduit for supplying grease thereto, said conduitcomprising a tubeixedly fitted in sealing contact with the walls of abore in ,the brush head, and a spindle extending into 'a counter-hereinsaid head, said tube teleseoping with sliding sealing fit into saidspindle.

Pressure grease brush for greasing` `and the 'like comprising a brushhead having a bore extending therethrough and an enlarged coaxialeounter-bore forming a shoulder, a tube positioned in said bore having acollar 'adapted to seat on said shoulder and -orin a seal, a spindleextending into said counter-bore, in which said tube teleseo .es withsliding sealing lit, and interdigitating means on said spindle and saidhead for causl ing the two to` rotate together, said top and saidspindle forming a conduit for feeding grease under pressure to the brushhead.

Ll. Pressure, grease brush for greasing pans` and the like comprising abrush head having a bore extending therethrough and an enlarged coaxialcounter-bore forming a shoulder,- a tube positioned in said bore andhavin a collar adapted to it on said shoulder an form a seal, the topportion of said tube being swedged outwardly into intimate contact withthe brush head to form a seal, a spindle extending into saidcounter`bore, in "which, said tube telescopes with sliding Sealing lit,and interdigitating means'on said spindle andY head for causing the twot0 rotate together,said tube and said spindle orming r a grooveformed insaid head to cause the two to rotate together, said tube and spindlebeing adapted to feed grease under pressure to 'said brush head.

In testimony whereof I affix my signature.

WALTER F. DEHUFF.

